Hi, I think Kartesio is not ready to move: - the GUI is not so good - lack of tooltips - I am not happy with some strings and they lack context info - the standard C++ code is not so good either (this rm for example) - lack of testing I suggest you do a release first so we can test translations and you can get some users feedback and have time to move the code to Qt classes. This is my suggestion only, others may disagree Best regards, Anne-Marie